Difference in microspore composition of some samples from a bore at Comaum, South Australia

Abstract

The microspore content of samples from a bore at Comaum, S.A., has been determined. Evidence is brought forward which suggests that the passage from Tertiary to Mesozoic strata occurred between 620-ft and 650-ft levels. Several new sporomorphs have been described; their affinities with living and fossil types have been considered.

New species of Late JurassicAustralobuchia(Bivalvia) from the Murihiku Terrane, Port Waikato—Kawhia region, New Zealand

“…Buchia plicata was also recorded from Pahau rocks in north Canterbury by Wilson & Helby (1988) associated with a palynoflora dated by them as of late ValanginianHauterivian age, but now regarded as more broadly Berriasian -Aptian (Campbell et al 2004). The conclusion that B. plicata ranges across the Jurassic -Cretaceous boundary (should the specific identification be substantiated) is supported by the presence in this palynoflora of Ruffordiaspora australiensis (Cookson 1953) used by Campbell et al (2004) to define the base of the Taitai Series and recognized by Australian workers as first appearing just above the base of the Cretaceous (Campbell et al 2004), at the JurassicCretaceous boundary (Helby et al, 1987), or in the very latest Tithonian (Morgan et al 1995). This finding gives B. plicata a much longer time-range than any of the other forms considered below (potentially late Tithonian -Hauterivian, perhaps to Aptian, 10 -20 million years or more).…”

The first Australian palynologist: Isabel Clifton Cookson (1893–1973) and her scientific work

“…Kathleen M. Pike (later McWhae) also completed a MSc under Isabel. They collaborated on Dacrydium, Phyllocladus and Podocarpus (Podocarpaceae) cones, cuticles, leaves and pollen in PaleogeneNeogene coals and other sediments from Yallourn and other Australian localities (Cookson & Pike 1953a, 1953b, 1954a. Kathleen Pike also studied Casuarinaceae and Banksia cones (Pike 1952), before travelling to Cambridge to work on Quaternary pollen with Harry Godwin.…”

“…3) from the lignite-bearing strata of the Latrobe Valley, Victoria and other Paleogene-Neogene sediments in southeastern Australia (Cookson 1947a, 1947b, 1953a, 1954a, Cookson and Duigan 1950, 1951, Cookson and Pike 1953a, 1953b, 1954a, Clifford and Cookson 1953. The huge reserves of brown coal in the Latrobe Valley were being exploited by open cast mining for briquettes and electricity generation.…”

Palinología de la Formación Monte Chico (Cretácico tardío) de la Provincia de Santa Cruz, Argentina: Esporas

“…En Antártida: Santoniano-Campaniano de la Formación Santa Marta, Isla James Ross (Dettmann & Thompson, 1987;Baldoni & Medina, 1989;Baldoni, 1992b); Campaniano Tardío, Maastrichtiano-Paleoceno Temprano de las Islas Seymour y Vega (Baldoni & Barreda, 1986;Dettmann & Thompson, 1987;Askin, 1990a,b). Se documentó en el Jurásico Tardío y Terciario Temprano de Australia (Cookson, 1953;Balme, 1957;Dettmann, 1963). Afinidad botánica.…”